干旱区生态环境知识资源中心(Arid): Spatial and temporal expression of the wetlands of the Atuel and Salado rivers, La Pampa, Argentina

Arid

DOI	10.21701/bolgeomin.132.1-2.004
	Spatial and temporal expression of the wetlands of the Atuel and Salado rivers, La Pampa, Argentina
	Paez Campos, Hugo Ramiro; Fernando Dornes, Pablo
通讯作者	Campos, HRP (corresponding author), Univ Nacl La Pampa, Fac Ciencias Exactas & Nat, Av Uruguay 151, RA-6300 Santa Rosa, La Pampa, Argentina.
来源期刊	BOLETIN GEOLOGICO Y MINERO
ISSN	0366-0176
EISSN	2253-6167
出版年	2021
卷号	132 期号:1-2 页码:37-45
英文摘要	Wetlands are complex and diverse ecosystems, both in their biological characteristics and physical processes that determine their functioning. Their expression varies according to various factors, such as weather, geological environment, relationships between surface and groundwater and anthropogenic influence. The area is located at the confluence of the Atuel and Salado Rivers, in a semi-arid region within an extensive alluvial plain with many channels and flooded areas. The hydrological regime is drastically modified by upstream uses, which complicate the understanding of its functioning. The objective of the study was to describe changes in the spatial patterns of flooded areas, based on remote sensing with optical satellite images (Landsat 5TM, 8 OLI and Sentinel 2A). For the analysis of the inter-annual and monthly spatial variation, the events and continuous series between 1984 and 2017 were used. The surface and groundwater interaction was analyzed by comparing flows, variation of the water table and hydrochemistry. The activation of the wetlands shows an expansion and contraction related to the hydrological regime of both rivers, with a predominantly influential character. Groundwater gradients have the same direction as the surface flows. The lack of these flows drastically deteriorates chemical quality of the groundwater. The flooded pattern differs according to the magnitude of the runoff events. The synchronicity of high flows in both rivers determines the area expression of the wetlands and the surface outflow from the system.
类型	Article
语种	西班牙语
开放获取类型	gold
收录类别	ESCI
WOS记录号	WOS:000697276900004
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362735
作者单位	[Paez Campos, Hugo Ramiro; Fernando Dornes, Pablo] Univ Nacl La Pampa, Fac Ciencias Exactas & Nat, Av Uruguay 151, RA-6300 Santa Rosa, La Pampa, Argentina
推荐引用方式 GB/T 7714	Paez Campos, Hugo Ramiro,Fernando Dornes, Pablo. Spatial and temporal expression of the wetlands of the Atuel and Salado rivers, La Pampa, Argentina[J],2021,132(1-2):37-45.
APA	Paez Campos, Hugo Ramiro,&Fernando Dornes, Pablo.(2021).Spatial and temporal expression of the wetlands of the Atuel and Salado rivers, La Pampa, Argentina.BOLETIN GEOLOGICO Y MINERO,132(1-2),37-45.
MLA	Paez Campos, Hugo Ramiro,et al."Spatial and temporal expression of the wetlands of the Atuel and Salado rivers, La Pampa, Argentina".BOLETIN GEOLOGICO Y MINERO 132.1-2(2021):37-45.